Sterlco SLS Series Light Duty Shredder - Manual (Page 39)

GRN4-600 Chapter 6: Troubleshooting 39 of 50
Problem Possible Cause Possible Remedy
Rotor does not grip bulky
material.
Knife condition
• Check and sharpen in
needed, according to the
instructions in this manual.
Protruding bed knife.
• Consult customer service.
Knives not aggressive enough.
• Fit underlay plates below the
knife holders.
Overheating grinding material.
See first five causes for
“Machine blocks or switches
itself off”
• See first five remedies to
“Machine blocks or switches
itself off”
Knives sharpened wrongly.
• Modify knife finish after
consulting customer
service.
Material rubs against the
housing wall.
• Fit anti-winding device.
Insufficient cooling. • Fit rotor cooling.
Unusual vibrations.
Rotor out of balance. • Weight knives, balance rotor.
Bearing damage.
• Check bearings and replace if
needed.
Anti-vibration pads defective
• Check mounting pads and
renew if needed.
Extreme cutter wear.
Bearing damage.
• Check bearings and replace if
needed.
Knife finish.
• Check knife and
sharpen/replace if needed.
Wrong cutting gap.
• Check cutting gap and set
according the instructions in
this manual.
Foreign matter.
• Fit feed device with metal
detector.
Bearings too hot.
Too much grease. • Reduce amount of grease.
Rubbing on housing sealing
ring.
• Check sealing ring, oil, or
replace.
Bearing damage.
• Check bearings and replace if
needed.
No grease in bearing. • Lubricate bearing.
Cutting gap alters during
operation.
Knife mounting screws not tight.
• Re-tighten using torque
wrench in accordance with
this manual.
Screw fatigue. • Fit new screws.
Washers are deformed. • Insert new washers.
Knife holder surface is
deformed.
• Insert new knife holders.
Support surfaces are dirty. • Clean and re-dust surfaces.
Threads in housing are worn.
• Fit new brushes in housing.